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[object Object],Todd Lammle’s CompTIA Network+ Chapter 2: OSI Specifications Instructor: Mike Qaissaunee
Chapter 2 Objectives ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Networking Standards Organizations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Networking Standards Organizations (cont’d.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ANSI ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EIA and TIA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
EIA and TIA (cont’d.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
IEEE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ISO ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ITU ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ISOC ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ISOC (cont’d.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
IANA and ICANN ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
IANA and ICANN (cont’d.) ,[object Object],[object Object],[object Object],[object Object]
Quick Quiz  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Internetworking Models ,[object Object],[object Object],[object Object]
Advantages of Reference Models ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The OSI Model ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The OSI Model ,[object Object],[object Object],[object Object],[object Object]
The OSI Model (cont’d.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The OSI Model (cont’d.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Figure 2.1 Flow of data through the OSI model
Application Layer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Presentation Layer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Session Layer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Session Layer (cont’d.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Transport Layer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Transport Layer (cont’d.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Reliability ,[object Object],[object Object],[object Object],[object Object],[object Object]
A Connection Oriented Session at Layer 4
Flow Control at Layer 4
Windowing Flow Control
Acknowledgements
Transport Layer (cont’d.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Transport Layer (cont’d.) Figure 2-2 Segmentation and reassembly
Transport Layer (cont’d.) Figure 2-3 A TCP segment
Routing at Layer 3
Routers at Layer 3
Network Layer  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Network Layer (cont’d.)  ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Network Layer (cont’d.)  ,[object Object],[object Object],[object Object],[object Object]
Network Layer (cont’d.) Figure 2-4 An IP packet
Data Link Layer ,[object Object],[object Object],[object Object],[object Object],[object Object]
Data Link Layer (cont’d.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Data Link Layer (cont’d.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Data Link Layer (cont’d.) Figure 2-5 The Data Link layer and its sublayers
Data Link Layer (cont’d.) Figure 2-6 A NIC’s Mac address
Physical Layer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Physical Layer (cont’d.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
OSI Layer Functions
The Upper Layers
The Lower Layers
Data Encapsulation
Communication Between Two Systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Communication Between Two Systems (cont’d.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Communication Between Two Systems (cont’d.) ,[object Object],[object Object],[object Object],[object Object]
Communication Between Two Systems (cont’d.) Figure 2-7 Data transformation through the OSI model
Frame Specifications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Frame Specifications (cont’d.) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
IEEE Networking Specifications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
IEEE Networking Specifications (cont’d.) Table 2-2 IEEE 802 standards
Summary ,[object Object],[object Object],[object Object],[object Object]

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Chapter 2

Notas del editor

  1. iso is the Greek word for equal.
  2. Answer: ANSI